Fig. 9. a, b, f. – Humerocyrtis gracilis n. sp.: a. – paratype, Rc4; b. – holotype, BV 85-70, f.– Rc4. c. – Humerocyrtis avirostrum n. sp., Rc4; d, d1, e. – Humerocyrtis brevithorax n. sp., CRH: d, d1. – same specimen in lateral and basal view, respectively, showing the initial spicule without D ray, e. – holotype. Scale bar of 50 µm is for all figures, except fig. 7c for which the scale bar is of 75 µm.